Posted on 06/23/2017 11:45:46 AM PDT by w1n1
Also beware of the words...”Hold my beer.”
There are lots of chambers that are safe for more than one cartridge (but I don’t think this combination quite makes the list).
A .32 Colt Short is safe to shoot in a .32 Colt Long, a .32 S&W Short in a .32 S&W Long, a .38 Spl in a .357 Magnum, or a .44 Spl in a .44 Magnum.
A .410 is safe in a .45 Colt (AKA .45 “Long” Colt, not .45 ACP) is safe in a .454 Casull is safe in a .460 S&W Magnum.
Some Taurus Judge revolvers are advertised by the company to shoot either .45 Colt or .410 bore shotgun.
Just to name a few.
The reason the guy in the video had problems with excessive case head expansion is that the .45/70 uses a tapered case. It’s 0.480” at the neck (as are most .45-ish rounds) but it flares at the base to 0.505”.
The .45 Colt, .454 Casull and .460 S&W Magnum all are straight-walled cases from 0.478”-0.480” diameter. A .410 shell’s base diameter is 0.470 but .410 chambers are 0.478” or 0.481” (depending whether they’re 2 1/2” or 3”), so they’re well-suited to the chamber dimensions of the .45, .454 or .460.
I’d bet the guy in the video knew it was a mismatch but tried it any way, just to see if a firing chamber oversized by 0.025” was enough for the case head to rupture. Any rifle chamber designed for .45-70 smokeless has an overpressure safety factor of at least 200% when firing a .410 shotgun shell, so it stood pretty much zero chance of the receiver failing. I’d have liked to see him run a full box of shells (or two) through it to see whether he got lucky with those three shots or if one-fortieth of an inch just isn’t enough slop to allow the cases to rupture.
It’s stupid to shoot a shotgun shell down a rifled barrel, unless it’s a slug. The barrel spins the shot, and the pattern is a donut shape with a big hole in the middle.
I remember a story about a guy trying to clear pigeons out of a warehouse, and after blasting away for a while, all he got was a lot of feathers. All of the birds survived.
I really like the Trapdoor. Is yours the carbine, or the rifle?
I have a repro rifle (Pedersoli). That thing really reaches out there with black powder rounds.
Actually he left me one of each. I dont use them much. We just pop off a few when my brothers come to visit. I also have a Marlin 1895 that I used for a camp rifle.
I discovered that if I used IMR4395 powder I get better muzzle velocity (1800fps) than factory ammo (1700fps) with 350 grain bullets and the slower burning powder shoots noticeably softer. That ammo would probably destroy a trapdoor Springfield.
Frankly I’m kind of afraid of the trapdoor and only load up about 40gr of pyrodex. The long gun does shoot noticeably softer than the carbine. I also used 400gr cast bullets. My Dad had the bullet molds too.
Nice. So long as you don’t load smokeless, they should shoot for a good long time. There’s an excellent book about shooting these things, how to load for them, etc. if you haven’t seen it:
I load real black powder (Goex Cartridge) and 425 grain bullets with SPG lube.
YUP! Works fine with either.
“It’s stupid to shoot a shotgun shell down a rifled barrel, unless it’s a slug.”
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Depends. Rifled barrel of Judge bypasses length requirement for shotguns.
Good for close, interior personal defense
http://www.winchester.com/products/new-products/pages/pdx1-410.aspx
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